Horseshoe-calk.



L. L. POX.

HOBSESHOE GALK. APPLICATION FILED JAN. 17, 1914.

1, 1 1 1 ,391 Patented Sept. 29, 1914.

WITNESSES UNITED s'rn'rns PATENT OFFICE.

LLOYD L. FOX, OF LOWELL, MAINE, ASSIGNOR 0F ONE-THIRD TO HARRY A. WHEELER,

OF NEWTON, MASSACHUSETTS, AND ONE-THIRD T MAINE.

NATHAN o. rose, on, LOWELL,

HORSESHOE-GALK.

Specification of Letters Patent.

Application filed January 1'7, 1914. Serial No. 812,667. j i

To all whom it may concern:

Be it known that I, LLOYD LQFOX, a citizen of the United States, residing at Lowell, in the county of Penobscot and State of lliaine, have invented certain new and useful Improvements in Horseshoe-Calks, of which the following is a specification.

My invention relates to calks for horseshoes and consists of improvements in the form and structure of the calk.

The object of my improvement is to provide a calk which can be welded to the bottom of the horseshoe with a butt weld and also to the sides of the shoe with a scarf weld, thus insuring a stronger and more permanent joint and preventing the calk from becoming loosened or being knocked off under the rough usage to which it is subjected.

The invention. is fully set forth in the following specification, illustrated by the accompanying drawings, in which like reference characters designate like parts.

In the drawings :Figure 1 is a perspective view of a toe-calk constructed according to my invention; Fig. 2 shows the method of attaching the toe-calk and the heel-calks to the horseshoe; Fig. 3 is a sec-- tional view on the line AA of Fig. 2, illu's trating the manner of joining the calk to the shoe with both a .butt and a scarf weld.

In Fig. 1, I have illustrated my improved form of toe-calk O for the forward or toeportion of the horseshoe S and it will be understood that the two heel-calks H, H shown in Fig. 2 are constructedcin the same manner, the only difference being that they are made somewhat shorter. The main portion 0 of the calk C is preferably wedge-shaped in cross-section to provide a relatively sharp working edge 0; while the upper, broad, flat face 0 is adapted to fit against the under side of the horseshoe S and to be Welded thereto with a butt weld. Projecting upwardly from the top face 0 of the calk is a sharp-pointed prong c which is adapted to be driven into the metal of the shoeafter the latter has been heated to soften it. The

main purpose of the prong c is to provide a means for locating the calk in position on the shoe before commencing the welding operation. Extending laterally from the sides of the calk at or near its center are two relatively thin wings or lugs 0 c. The lugs c are provided as a means for securing-the calk to the sides s, set the shoe S with a scarf weld and are adapted to PatentedSept. 29, 1914.

be bent or folded, around the shoe as illus-" trated more particularly in Fig. 3.

Themethod of welding my improved calk to the horseshoe will now be described in detail. The shoe is first heated and the calk applied thereto by driving the cold prong 0 through the hot 'metal. This serves to fix the calk in its proper position on the shoe and the two can then be handled more easily during the welding process. At the same time, the prong 0 serves to hold the calk in place during the welding sothat its relation to the shoe will not be disturbed under the hammering to which it is sub jected. After the calk C has been located on the shoe in this manner its face 0 is welded to the under side of the shoe S with a butt weld, so-called. The lugs c are now bent up against the opposite sides 8, s of the shoe S, as shown in Fig. 3, and welded thereto with what is termed a scarf weld. It is this scarf weld which serves to stiffen and reinforce the joint between the shoe and the calk and prevent the latter from being knocked off under severe side stresses.

Heretofore it has usually been the practice to weldcalks to horseshoes with merely a butt weld, that is with simply a surface joint between the under side of the shoe :and the upper face of the calk. Such a joint, however, is far from being secure and calks applied in this manner invariably become loosened and detached long before they wear out. ith my present improvement, by securing the calk to the opposite sides of the shoe with a scarf weld, a

double reinforcement is provided and the joint is made much more secure so that it effectually resists the severe lateral strains to which the call: is subjected. In other words, with my improved method of welding the calk to the shoe a much stronger and more permanent joint is effected and I have demonstrated the fact that it is practically impossible to loosen the calk with severe blows directed'against its sides. Ascalks are usually applied to shoes during wintry weather, to prevent the horses from slipping, they necessarily receive very rough usage from striking against frozen ground, and my improvement which makes for greater durability is therefore of much value and importance.

I am aware that it has previously been proposed to form side lugs on horseshoe calks adapted to abut the sides of the shoe. Heretofore, however, such arrangements have been used only in connection with calks designed to be fastened to the shoe with screws, bolts, or by the horseshoe nails, and it is my belief that up-to the present time no one has ever conceived the idea of welding the call: to both sides of the shoe. That is to say, I believe it tobe entirely novel to provide a calk having a plurality of side lugs adaptedto be Welded to the shoe to form a scarf weld and it is for this novel feature that I claim protection.

What I claim is As a new article of manufacture, a horseshoe calk having a main body portion adapted to be welded to the under side of the shoe with a butt weld and a )lurality of integral lugs extending lateraly from said body of the calk to adapt them to be bent around both sides of the shoe to be welded thereto to form a scarf weld.

In testimony whereof I affix my signature in presence of two witnesses.

LLOYD L. FOX.

\Vitnesses JOHN W. ELLIS, HNNIE E. SHOREY.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washington, D. C. 

